Oil-bolt.



R. W. RAY

OIL BOLT.

APPLICATION HLED N0v.4.191a.

Patented June 11, 1918.

RUDOLPH 'W. BAY, OF CLEVELAND, OHIO, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- Mnnrs, or rrvn-rnnrn's OIL-BOLT.

Specification of Letters Patent.

T0 ALBERT D. RAY, FOUB-TENTHS T0 WORTHINGTON BLUIE'ORD W. BROGKETT AND ELIBERT L. HYDE, ALL OF Patented June-11, 1918.

Application filed November 4, 3916. Serial No. 129,511.

To all whom it may concern.

Be it known that I, RunoLrH W. RAY, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Oil-Bolts, of which the following is a specification.

This invention relates to oil bolts or pins or, in other words, belts or pins having means for lubricating the parts to which they are connected.

The object of the invention is to provide an improved oil bolt or pin having a reservoir for lubricant and provided with the necessary means for causing or permitting flow of said lubricant to the parts to be lubricated. A further object of the invention is to provide an oil bolt which is of simple construction and can be made at low cost and in various sizes and styles; which carries suflicient lubricant for a considerable time; which protects the lubricant against contamination by dirt or foreign substances; which delivers the lubricant directly to the points where lubrication is necessary; which prevents waste by stopping the flow of lubrlcant except when desired; which can be readily operated whenever desired, to cause or permit flow of lubricant to the parts;

which can be substituted for any other ordinary bolt of like size now in use without modification or change of ex sting parts; and whose lubricating features do not intervfore in any way with the ordinary holding showing a modification; Fig. 8 is an elevation thereof, partly section; and Fig. 9 is a sectional view showmg stlll another mod fication.

I The bolt shown in the drawings comprises .a body or shank 1 threaded at one end to receive the nut 2 and provided at the other end with a head 3 forming a shoulder 4 The parts to be held together by the bolt are located between the shoulder 4: and nut 2, the bolt shank having a smooth uninterrupted surface to form a good bearing for any turning parts to whichit is connected.

Within the bolt shank is a cavity or. cham her 5 closed at the thread end and opening outwardly through the head end of the bolt.

hlS cavity serves as a reservoir for the lubricant which is in liquid form, such as an oil. The outer portion of the cavity has, its wall surface tapered or conical, as at 6, to form a seat for a rotatable valve plug --7 which is also provided with a hollow bore or cavity 8 closed at the outer or head end of the valve and open at its inner end, and which supplements the capacity of the chamber in the bolt Wall of valve 7 is a port or opening 9 extendi g substantially radially outwardly and at its outer end terminating opposite the inner tapered wall surface 6 of the bolt chamber.

as an oil reservoir. In the By rotating the valve plug on its seat this port can be brought into registration with a radially extending port 10 in the bolt head, which then serves as a filling opening through which oil may be introduced, or as an air hole to permit fiow of the lubricant, as will later appear. The plug may also be turned to another position in which the port 9 is opposite a blank portion of the bolt wall, which closes said port and prevents any passage therethrough of oil or air or the entrance of dirt or foreign substances.

Suitable means is provided for limiting rotating movement of the valve plug in both directions. The means shown comprises a pin or projection 11 on ing in a circumferentially extending slot or recess 12 in the bolt head, the shoulders 13 at the ends of said recess serving as abutments for coiiperation with said projection.

WVhen the pincontacts with one abutment the valve is open and when it contacts with the other the ,valve is closed, as will be readily understood.

The bolt shown in the drawings has its Valve plug extending about half way into the bolt chamber, the remaining portion of said chamber being cylindrical. The valvemay be of any suitable length,-

the valve plug work- :smh 1 seatec Wiflwut binding endi J y but nevertheless will 11:; as my, Te held said screws m led, mam-n she sifle wells of the ex- 2 mashed or :recessed, 26*, er 2m smell spring; ring 27 which against the sides m? the two s e JOEE in the recess.

e end 8 Show another form of the inve; 1: 1 in which the lateral extensien before be is a, metal plate secured. v valve member by casting gm integral "eugh. hele in said plate, said bent e; the sic'ie 0f the bolt heed pm'eflei with each 'other but The enter ply 29 is slitted to separate screw receiving ears. The 1e 7W0 screws are just, boned and bi}. port alial'eeti y E0 1; face the belt {I whee we was.

part 1 1- e1es s0 that i & bj she twq P1198, efeer Whleh m 1 eseez shghtly 'tewerd each. ""Wl'i'ig the fihreads therem out 01";

t reiefrien, This serves as a leek even the from tummy heel or e r safeguard the device end inare supply thereto the Well of the die the veve body be prein (me 01' more ports 30 {twe fleeing which, when the valve is open are flattened portion. 31 0f the valve :11 air can flow from Saki ports e be; described is of simple mnstmc 3 pen of course be made In a nude 0; emi shapes. It 1s sultable nemy purpeses and can. be substituted v rdmery belt requu'lng iubrlcetlen change in the parts to Whieh said ed. it s: also be used in. ions, In its horizontal p0siwe in she drawings, is adapted.

Le" fe example, 011. automobile springs g; messiah/Lite fer the usual eye belt e011- the e116; of the spring 00 its mai-e e vehicle beiy. 111 its vertical posi- 11 be used for the pivot belt coni e Wheel knuckle $10 the axle. In

111cm mementery opening eit bhe 0r mere of i1 is flew psi-ts be be lubricated.

e valve member carried by y hex Eng twe positiens, in sei" pert is cleseci and in the V art is opened. and pere belt surface manufacture, e eeif Wismg bait hedy a: (fie meamieemre, a, self 16?. e eemprising a, bolt belly hes" ed seen "previded with an f la '1 an oil reservoir and e,

j i A. a said resewor m the belt having a head and shank and provided with an inner cavity forming an oil reservoir and with a port leading from said cavity to the bolt surface, and a valve member rotatable Within said cavity and having an extension outside of the same, said exten sion and the valve member in one of the positions of said member closing both ends of said port, and in another position of said member opening both ends of said port to-perinit oil to flow to the bolt surface.

As an article of manufacture, a self contained oil bolt, comprising a bolt body having a head and shank and provided with an inner cavity forming an oil reservoir, said head and shank being each provided with a radial port, a rotatable valve member in said cavity adapted to open and close both of said ports, and an extension on said valve member lying outside of said valve body and adapted to cover and uncover the outer end of the port in the bolt head.

4. An oil bolt, comprising a bolt body provided With a cavity having a valve seat, a valve turning on said seat, the bolt body having annular inclined surfaces, and ad justing screws carried by said valve and cooperating with said surfaces.

5. An oil bolt, comprising a bolt body provided with a cavity having a valve seat, a valve turning on said seat, the bolt body having annular inclined surfaces, adjusting screws carried by said valve'and cooperat ing with said surfaces, and means for looking said screws in adjusted position.

6. As an article of manufacture, a self contained oil bolt, comprising a boltbody having a head and shank and provided with an inner cavity forming an oil reservoir, the outer end of said cavity having a conical portion forming a valve seat, and saidbolt bodyhaving a radially extending port opening through said seat, and a tapered valve member lying within said cavity and rotatable on said seat and controlling the flow of oil through said port, and yielding means normally holding-said valve'member in position to close said port.

7. An oil bolt, comprising a bolt body a having an bil reservoir, a rotatable valve" controlling the flow of oil from said reservoir, and a spring strip connecting the valve and body and adapted .to be twisted when the valve is rotated.

8. An oil bolt, comprising abolt body having an'oil reservoir, a rotatable valve cont-rolling t-he flovv of oil from aid reservoir, and a springstrip connecting the valve and body and adapted to be twisted when the valve is rotated, said spring strip lying in said oil reservoir.

9. An oil bolt, comprising a bolt body having an oil reservoir and provided with filling and discharge ports, a valve rotatable in said body and controlling said ports, and supplemental means arranged to permit flow of air to said reservoir when the valve is opened. v

10. An oil bolt, comprising a bolt body having an oil reservoir and a filling port in its Wall, and a valve rotatable in said body and provided with portions adapted to open and close both ends of said port.

. 11. An oilbolt, comprising a bolt body having its wall, a valve rotatable in said body and provided withpor'tions adapted to open and an oil reservoir and a filling port in close both ends of said port, and means for 

